Conveyer



Aug. 15, 1933.

G. M. CRAWFORD ET AL GONVEYER 3 Sheets-Sheet 1 Filed April 26, 1928 Aug. 15, 1933.

G. M. CRAWFORD ET AL 1,922,198

CONVEYER Filed April 26, 1928 3 Sheets-Sheet 2 1933- G. M. CRAWFORD ET AL 1,922,198

GONVEYER Filed April 26, 1928 5 Sheets-Sheet 3 m QB mm. km

INVENTOR @QWN mlllllllllillll Patented Afug.15, 1933 '1 1,922,198.

I STATES A N O i so constructed that they can be rigidly connected driven crank' disc having a crank pin 14 thereon converting GeorgeM; Crawford; Ingomar; and JacobM.

London, Butler; Pai Application Apri1f2 6, 1928.. seriai ne. 272,905

11 c aims. (01'. 198 -220} This inventionzrelates to" conveyers, andisfor Figurer1l is-anwend: viewof the truck mounted a conveyor of the vibratory or shaking-1 typewin onrtheconveyer"and'having a trough' section set which the material ismovedalongtheconveyer thereon-for abody or for transportation, bymeans of a reciprocating motionimpartedr to In the rdrawings, Z-designates the conveyer. genthe conveyer. i erallyand 3&is an operating unit therefonw The 59 Conveyors of this kind are: commonly usedinp conveyer is" in theform-of a trough madeupof mines fO'r the handling. of coaliantt other; mate'- sectionsof suitable length and designatedA' opri'aLbut' theiruse: is, of course, not confined to crating: on track sections 5. minesa "As heretofore";generallyconstructed; the The driving: unit may comprise any suitable conveyen'requires ai specialimounting at regular mechanism for imparting asreciprocable shaking 65 intervals, which mounting must be firmly anor' vibrating movement to thetrough, but werprechored in'ordentogiveproper supportt'ostheconfer to use a unit of the type disclosed'insour covey er, i l pending application Serial No; 272,906 filed April According to the present invention there is 26, 1928 wherein alink=6 havingoneend attached provided at conveyer of novel construction which to the conveyer at 7 and its other endattached to canbe cheaply manufactured and whichissmade a; crank arm 8 at-Q-is employed; The crank arm up inconvenient lengths; Each lengthis pro- S iscarried on a shaft 9a mounted in abearing vided withaseparate track section which serves 10; and carried'on theshaft 9a is a. second armllasa supportthereifior. The conveyer'sections-are having a curvedslot 12 therein. At 13 ist a power together, and the track sections may also berigon which isablock 15 adapted to operate'in the idly connected; Bil-reason of this arrangement curvedslot l2. h I special foundations and: anchors for the con- Rotation of thecrank disc 1-3 oscillates thewarm r veyer are not required; i 8 to reciprocate the conveyor; and by reason of, the

The present" invention furthermore-contem curvature ofz'the slot 12 theconveyer is moved platesthe provision of a novel arrangement for ;f rw rdlm w t 'a constantly accelerated motion operating a feeder conveyer by reciprocation of Q-HdPmOVBS fl y With a substantially the main conveyer. stant decelerated motion. It will be understood;

The invention maybe better understood by refwever. that any other suitable: drivin t erence" to the accompanying drawingswhi'ch 'illuscan be substituted for that h 1 trate a preferred embodiment or ourinvention, Each conveyer section 5H5 preferably Dressed in'whih i 5 t i from a.- sheetof heavy-gaugelmetaland has a flat Figure 1' is a side elevation of a" portion ofa "bottom'portion 16 and vertical sides 17. Each conveyer constructedin accordance with our in- O hevert cal-Sides1'7has-ant outwardly'turned vention; flangelB thereon with adepending lip 19. V

Figure- Z-is' aplanview of the conveyor shown We have'ioundthat the materialistransferred inFigu-re 1, and iii-additionthere is shown a. with greater efiiciency along. a trough havingtransverse feeder for delivering-,material to the s s tv r des a it is in a t u h of the maintconveyer; i v usual construction wherein the sidesare outward- Figure *3 is a vertical transverse sectionin the ys p 6 laterally turned fl es 8 which planeoflinelflI -l'lli of -Figure*2; i reinforce the trough form convenient means. for Figure 4 isa perspective view of one arenaen h d n th conveyer, an in i i nv v i any veyer sections"; sharp edgeiwhich might injureaworkman falling FigureSis" asirnilar view of one of thetrack i or v the apidly r ciprocatingtroueh. 100

sections; r i Each of the conveyor sections 4 is made with a Figure 6 is a detail side elevation' of the consli h per so tha one end is slightly lar er veyeranrl track assembly; I" than, the other end. This permits one 'se ctioneto Figure 7' isa longitudinalvertical". section overlap the next, as clearly shown'in Figures 1 through the conveyerandtrack assembly; andxfi. Secured to the bottom'of each section.

M Figm'e 8* is a perspective view "of the conveyer alongeach edgethereof is an angle bar 20 with y y andtrac'k assemblyg a g j 1 the horizontal leg thereof set againstthebottorn Figure-*9" is an ehdview ofthe assembly shown of "thetrough to reinforce it and with the downe inFigure 8f; f t 1" wardly'turned leg thereof substa ntiallyfiush'with Figure 10 is a" perspective view of artruck for the vertical sidel'l of the trough. Atthemwider dolly adaptedto' be" used on theconveyer; and end of the trough and on each sidethereoi. is socured an eye 21. Near the narrower end of the trough, but not at the extreme end of the section, is a similar eye 22. The eyes 22 are set back from the end a distance equal to the distance which the trough sections overlap in the assembled conveyer.

The conveyer sections are joined together by overlapping the ends as shown and passing bolts 23 through the registering eyes 21 and 22 of the respective sections. Nuts 24 on the bolts are screwed up tight to bring the eyes 21 and 22 into contact, as clearly shown in Figure 8. This coupling in addition to the overlapping of the pans with the interfitting lateral flanges 18 provides a tight rigid joint between the sections. 7

The track sections 5 are conveniently made substantially the same length as the conveyer sections. The track is co-extensive with the conveyer. The construction of the track sections is best shown in Figure 5. Each section is comprised of parallel rails in the form of angle bars-25 arranged just oppositely to the angle bars 20 on the trough sections. They are preferably formed of structural metal, and are laid in spaced relation by means'of cross bars 26,27 and 28 which are preferably secured thereto by spot welding.

The cross bar 26 is preferably set inwardly from the ends of the rails 25 while the cross bar 28 projects a slight distance beyond the ends of the rails. On the crossbar 26 is an eye 29 and on the cross bar 28 is an eye 30. The track sections fit together,-as clearly shown in Figure 8. The rails 25 of one section project over onto the cross bar 28 of the next section by reason of the fact that the cross bar- 26 is set a slight distance inwardly from the ends of the rails. A bolt 31 passes through the registering eyes 29 and 30 of the respective sections, holding the sections tightly together in abutting relation.

' On the horizontal leg of each of the rails 25 are a pair of spaced apart stop elements 32. Set on each of the rails between the stop elements 32 is a roller 33. There are just two rollers 33 on each track section; one at each side of the conveyer. The rollers 33 are confined; against lateral movement by the angle bars 25 and 20, and the horizontal legs of the angle bars provide bearing surfaces for the rollers. With this arrangement one end of each trough section is supported on the rollers and one end is supported on the preceding section.

As the conveyer reciprocates, the rollers 33 provide an anti-friction mounting for the trough. Since the rollers are confined between the vertical legs of the angle bars 20 and 25, they guide the conveyer and prevent the trough from moving laterally relatively to the track. Due to the rigid connection between the respective trough sections and the rigid connection between the re-' spective track sections, the conveyer is rigid throughout its entire length, which maybe several hundred feet, and it has been found that the track does not require any special mounting or anchoring to hold it against shifting. Additional sections canrbe conveniently added merely by removing bolts 23 and 31 and slipping in an additional section. 7

Where desired, a feeder conveyer may be pro vided operated fromthe main conveyer and arranged to deliver material into the main conveyer. In mining operations particularly it is desirable to have such atransverse conveyer exv tending along the working face' in the mine so that coal may be transferred directlyfrom the working face to such feeder, and the feeder advanced as the face of the rim is advanced.

In Figures 2 and 3 we have shown one arrangement for a feeder conveyer.

The feeder conveyer is of the same structure as the main conveyer, having a reciprocating trough 4a and a tr ck 5a. Passing under the track 5 of the main conveyer is a plate 35 which may be secured in position by any suitable anchoring means such, for instance, as one or more jacks 36. Pivotally mounted on the plate 35 to swing about the pivot 37 is a second plate 38 having channels 39 thereon which support one end of the track section 5a of the cross feeder. Mounted on the plate 33 is a sheave i9. Mounted. on the plate 35 are two spaced apart sheaves il so located that the peripheries thereof bear against the side of the main conveyer 5. Secured to the underside of the trough section 4a, one on each side of the center line thereof, are depending cars 42. Secured tothe side of the main conveyer at 43 is one end of a chain -14 which passes around the sheaves 41 and the sheave 40 and has its other end secured to the main conveyer at 45. A bolt 4-3 clamps the chain 44 to one of the depending ears e2.

With this arrangement it will be seen that as the main conveyer moves back. and forth, the chain 44 will move back and forth. By reason of the connection between the chain and the ear 42 the cross conveyer will be reciprocated with the main conveyer and to the same extent as the main conveyer. Since the cars 42 are positioned adjacent the center line of the feeder conveyer, it will be seen that the pull exerted by the chain on the cross conveyer will have little tendency to swing the cross conveyer about its pivot 37. However, the cross conveyer may be adjusted to different angular positions with respect to the main conveyer by. moving the outer end of the conveyer, the entire conveyer with its supporting plate 38 swinging about the pivot 37. The sheaves 41 bearing against the side of the main conveyer take up the lateral thrust or pull of the chain 44, and provide a rolling bearing therefor.

The cross conveyer has its inner end at sufficient elevation that it can reciprocate back and forth over the edge of the main conveyer and discharge material into the main conveyer.

The feeder conveyer can be located at any point along the main conveyer, or several feeders may be provided with a single main conveyer. Also the feeder conveyers may operate from either side of the main conveyer.

In operating the conveyer it is preferable that the forward end of one section, considered in the direction of travel of material along the conveyer, is set into the rear end of the section ahead of it, as in this way the overlapping of the sections will not present any obstruction which will resist the forward movement of the coal or other material being handled by the conveyer.

The conveyer embodying the present invention can be conveniently made in relatively short sections, and the sections may be of such light construction that they can be conveniently handled by one or two workmen. This is also true of the track sections, which are extremely light and can be very conveniently handled.

Where the conveyer is used in a mine, and possibly in other uses, it is sometimes desirable to move additional trough sections, props, construction materials, etc., from the discharge end of the conveyer to the receiving end. For this purpose, a truck or dolly (see Figures 10 and 11) is ill) The truck can be set on the trough when the conveyer is stationary and rolled along it to trans fer construction material and additional trough sections from the unloading end of the conveyer not limited to the particular construction shown, i butmay be otherwise embodied within the scope of the following claims.

We claim: I 1. In a reciprocating conveyer, a conveyer section comprising a trough member and a track member, said trough member comprising a trough having a pair of spaced apart angle bars attached thereto extending therealong, said track member comprising spaced apart angle bars extending longitudinally thereof, and rollers opmember.

eratively disposed between the angle bars of the trough member and the angle bars of the track 2. In a reciprocating conveyer, a conveyer section comprising a trough member and a track member, said trough membercomprising a trough having a pair of spaced apart angle bars at-' secured together, a sectional track substantially coextensive with the trough and comprising rigidly connected sections, and rollers operatively disposed between one end of each trough section and the track, the other end of each trough section being supported on a preceding section- 4. A conveyer of the reciprocating trough type comprised of a plurality of rigidly connected trough-sections and a plurality of connected track prising a pair of angle bars extending there along, the angle bars on the trough having the horizontal leg thereof turned inwardly and the l vertical. leg turned downwardly, the angle bars,

of the track section being oppositely disposed, and

a roller on each'angle bar of the track section cooperating with the angle bars on the trough member.

5. A conveyer of the reciprocating trough type comprised of a plurality of rigidlyiconnected trough sections and a plurality of connected track sections, each trough section comprising a trough -memberrihaving Ia pain-oi: spaced. apart i angle bars extending tlierealbng, each, track section comprisingria pair of angle bars extending therealong, the angl'e bars on the. trough having the horizontatileg thereof. turned. inwardly and the vertical: leg turned downwardly, the angle bars of roller on each angle bar of the tracls section cooperating with the angle bars on the trough memher, the trough member of one section overlapping the end of the next succeeding trough member.

6. A conveyer of the reciprocatingtrough type comprised of a plurality of rigidly connected trough sections and a plurality of connected track sections, each trough section comprising a trough member having a pair of spaced apart angle bars extending therealong, each track section comprising a pair of angle bars extend? ing therealong, the angle bars on the trough having the horizontal leg thereof turned inwardly and the vertical leg turned downwardly, the angle bars of the track section being oppositely disposed, and a roller on each angle bar of thetracl; section cooperating with the angle bars on the trough member, the trough member of one section overlapping the end of the next succeeding trough member,- the track sections also overlapping one another.

7. In a reciprocating conveyer, a main conveyer,

means for reciprocating the same, said main conveyer comprising a reciprocating trough and a track substantially co-extensive therewith, and a conveyer comprising a reciprocating trough and a track therefor, an anchor plate for the feeder con-- veyer passing under the track of the main conthe track sectionbeing oppositelyrdisposed, and a veyer, sheaves on the anchor plate bearing against the main conveyer, another sheave mounted on the anchor plate, a chain passing around said sheaves and having its opposite ends secured to the ,main conveyer, and a connection between said chain and the trough of the feeder conveyer.

8. The combination with a main conveyer hav ing a reciprocating trough and a track therefor,

of a feeder conveyer adapted to deliver material thereto comprising an anchorplate fixed with relation to the track of the main conveyer, an

adjustable plate mounted for movement in a horizontal plane on the anchor plate, a feeder conveyer comprising a track and a reciprocating trough supported on the adjustable plate, the trough of the feeder being above the trough of the main conveyer, and means for reciprocating the trough of the feeder upon reciprocation of i the trough of the main conveyer,

of a feeder conveyer adapted to deliver material thereto comprising an anchor plate fixed with relation to the track of the main conveyer, an

adjustable plate mounted for movement in a horizontal plane on the anchor plate, a feeder conveyer comprising a track and a reciprocating trough supported on the adjustable plate, the troughof the feeder being above the trough of anchor plate, a sheave on the adjustable plate,

main conveyertrough passing around said three sheaves, and a connection between said chain and the said feeder trough whereby the feeder trough is reciprocated upon reciprocation of the main conveyer. I

the main conveyer, a pair of sheaves on the 11. The combination with a conveyer trough having flanged side walls, of a car adapted to traverse said conveyer, having flanged wheels for riding on said walls.

GEORGE M. CRAWFORD. JACOB M. LONDON. 

